With the required parameters, variable number and keyword arguments can be used as well for positional and named parameters.

有了所需的参数，变量数和关键字参数还可以作为位置参数和名称参数使用。

youdao

The first step is to add the required hash to the variable declaration section.

第一步是向变量声明部分中添加必需的散列。

youdao

You define an activity-level variable when the variable is required only within a particular activity.

当只在特定活动中需要变量时，就定义一个活动级的变量。

youdao

Private student loans often carry uncapped, variable interest rates and aren't required to include flexible repayment options.

WSJ: To Pay Off Loans, Grads Put Off Marriage, Children